Composition for use with printers&#39; ink.



s e ecs produced 106. COMPOSITIONS,

COATING R PLASTIC.

OFFICE.

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; COBPPBATION or COLORADO.

g a For, use

am: HERBERT c. YOUNG, or DENVER, co on'Ano, assrenons, BY

ROKO G. CO, 01E DENVER, COLORADO, A

w-rrn rnmrnns" m Specification of Letters Patent. 'iatented Jul! 23, 1918.

Lin Application tiled October 5, 1916,1Seria1lo. 123,947. Renewed January '29, 1918. Serial nemesis. V

foallwkomitmay concern: -:Be.it known that we, WILLIAM N. "HAAS, and HERBERT YOUNG, citizens of the United :States, residing :at Denver, in the 5 county of Denver and State of Colorado, have invented new and useful Improvements in Composition for Use with Printers; Ink, of which the following is=a specification.

This invention relates to a composition for use with printers and lithographers r inks for the purpose of overcoming certain objections incident to the use of ordinary inks of various kinds, grades and colors and at the same time imparting desirable and valuable properties thereto. 'The primary gbjgm; of the invention is to provide a-co osition which, when mixed "f 'nters" 'will serve as areducer and s rea er -0 increase the coverin caev ,asan' ertopromote and increase the color tone-or efiect and impart-a finer vde ee of appearance to high medium and de inks, and to a secure lities, whereby the printed stoc pay e quickly handled and c; stacked 'yvitl put offsetting and similar objections.

A furthwjmof the invention is to provide a composition of the character described which insures economy in the use of ink, which provides for c more even and uniform di of the ink to the surfaces of the form and surfaces being printed, which by some inks, an w 10 fordinarilyset up in the process 0 printing. A still further object of the invention is 40 to provide a com osition of the/character 1 1 described which W-lll, without destroying the working condition {of ink while von press, quickly set the ink on non-absorbent, .enameled, glazed or similar surfaces with su'fl'icient rapidity toipermit of the stacking of the printed sheets to any degree as fast as impressions are taken without ofisetting, thus avoiding slip-sheeting and other expensive measures generallytaken for'preventing blurring, offsetting and -like difliculties in ltheqznip oymentpf printers in ome mon use. In carrying our invention into ractice,

we provide :acomposition of the character/ andfor the purpose set forth consisting of an, 1 n. n n or combination of t olatum .ma esium carbonate, and s 5111111 sgcate, 1n the proportions of one poun o petrolatum to :from two to three ounces of ma nesium carbonate, and iron one-fourth 5 one Ell fluid ounce of sodiuir silicate, a mixture of the ingredients lIl flu proportions of one pound of petrolatum to 2.5 ounces of the magnesium carbonate and one-half fluid ounce of the sodium silicatr being preferred as best adapted for ordinary or-general use.

In combining :the ingredients to roduc the composition, the :p'etrolatum and mag gr/e nesium carbonate are first thoroughly comi-j" bined and mixed together, and then the so dium silicate is added andmixed-thoroughl therewith, any suitable form of agitating 0 mixin device being employed.

Int e use of the'composition, one part of [I5 the composition is mixed with from four to five parts 0 t e i n l but a greater or less amount of 'thecomposition may be employed according to'the character and grade of ink, If an excessive proportion o'f thec'omposi- .80 tion is usedit will not dry upon-press or otherwise affect its working condition; the better grades ofink carry a larger proportion of pigment, such inks 'will' stand ,agreater reduction than the'lotver grades. '85 The ink thus combined with the composition l is then employed in any. of the ordinary "ways for "printing or litho raphin urposes. 'Itis to be underst0od, of cour egthat -the amount of the composition used in connection with any certain amount of ink may be varied to some considerable degree, dependent upon the particular character of the link the nature or character 'of the work to be'done and climatic or other conditions. 'In this composition, the petmlatimi is employed wlag having qualities to adapt it to intimate y combine with printers"'and flithographers. As this substance has aw the .m is added theretoto'ngfitmljgle such efiect iresultin in a mixture t at-w release iiself -rea' y without "pull and practically in -'its"entirety iron s ce use or pr d ein pri e -mpne sions, "such as" wooden "or metallic A, flfi'ififing yP zinc etchings, half-tone etchings, The ma'esium fut fl er arvgs a 1 w t pep i" f 11;; is'""employed snake for the ingredients ink, and as bothan e so 5 composition as in combination with the h ve and a unis cate, ,being lsilll'llte t oughoutthe mass; "overcoming" the" non-sticking proper ties of the magnesium icarbonate and cans. ing all the particles of the mass to adhere to each other and to paper and other surfaces. In this-composition, the magnesium carbonate neutralizes theoiliness of the pe-' 5 trolatum, while the sodium: s'ilicateinaddition to supplying adhesive and dryingproperties further performs the functions of 5a.

I: oducin ln printing upon paper with with whichthe composition'iscombined, the air coming in contact with the surfaceof the inkbetween impressions causes the'sodium silicate to harden and the'ink surface to set in a practically instantaneous mannergforming-a film thatprotects the impression under ordinary handling against blurring or ,destruction by the next printed articlexdelivered uponit, until such-time as it is thor- (q oughly set. In practice,-it is found that the surface of the ink sets with suflicient -rapid. ity'to permit of the stacking of thestock :to any'height as fast as it comes from the press, without o'fisettiug, thus eliminating slip-r L, T aheetingand stacking in trays in small quantities and saving'labor required for slip sheeting. This result is obtained in the printing of various kinds of papers, includmg 'hard non-absorbent papers such as I enameled, ledger or bond papers, and, owing 4 to the rapidity of the setting action, subsequent impressions may be taken, ink on ink, orfbacking up performed on enameled, bond or ledger papers-within a considerably shorter perio than could be done with original ink withoutofisetting.

It is understood of course, that the com position, when mixed with ink, tends .to lessen "the proportionate amount of color a matter, but'tlie composition has .an in- 0 tensifying action in increasing the color tones, and when used within certain limitati0ns produces a color effect in excess of that of'the original ink. It may be used to 5 equal advantage in black, white or any color 5 of ink inproportion to the result or effect most desired. the process vof taking'a printdimpression in 5 using anlink with thecomposi- 5 tion'mixed therewith no sticking ortacking occurs, practically all of. the ink being Tre leasedreadily on the object printed .u'pon;

'pi1ei1 5aw1s";5d tat; alarm aent, but possesses they; bjection tions or objections so that a smooth ,un-

r kenfldi' hib bniof inkiisjobtaiiied "on 4 the'sufface otfflicfiobject printed}, ,Theicomposition whenused with news enable 9nd Oilhfl. ly kinds of ink to be -.pa er, ,will,increase the fineness oftexture 'an coverin properties of all 'kindsand grades oft-ink, 'andnalso'rimprove the color :;tone of the. ink and impart a fine finish to even low grade inks. The composition is not a-fiected to any material extent by iclimatic conditions and imparts'its properties in this respect to the'ink, enabling the ink iobe worked freely at low temperatures and thus oviarcoming'difhculties experienced in printestablishments when :the temperature falls below 'a'certain degree; As the compo-v sition increases the setting-quality of the ink,.a larger supplyiof ink may be ied from a supply fount Eor carried upon an 'lIlklIlg plate than. is possible in the use of plain inks, resulting in a :heavy full tone impression. 7 7

feature incident to the also of the composition is that it serves asan elecv trical insulator bymeans of which the generation of static electricity, during the procgg .of printing entirely or practically eliminated,.thusovercom1ng all the ;d1fii-.

culties experienced in handling-electrically loaded paper. Inasmuch as the composition may .be used without strict regard to pro: portions within certain l1m1ts, the compos1-- tion may be mixedwith-ink and thetreated ink used The composition maybe used with all kinds of inks, including double-tone, withthe exce tion of copying p aving thus describ d pur nrent on, we claim: r

,1. A composition for use with printers ink embodying a nixture of pet-ro latum, magnesium carbonate,v and sod um silicate. 2. A composition .for suse with. printers ink embbdying a mixture, pf petrolatum, about, one poundfmagnesium; carbonate, from two to,

threelounces, and sodium silicate from one-fourth to one full fluid ounce.

: 3. A compos tion for [use withprinters by unskilled hands or apprentices.

ink embodying a mixture of petrolatum, J

one pound, magnesium carbonate, 2. 5 ounces, and Tsodium;si1icate zone-fourth 'fillld our: cc. 11 11 testimony whereof we aflix our s gnaitinanear. --o'. YOUNG. 

